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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 897 (Steering System - General Information) >> Diagnostic Tests >> Steering System >> Inspection and Verification >> Steering System Noise Definitions >> Whine

Steering System Noise Definitions: Whine

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

Whine is the general air-borne noise of the P/S pump. Whine is in the frequency range of 1 kHz to 4 kHz. Whine is generated when engine RPM, pump rotational natural frequency and pump/bracket natural vibration frequency align.

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